MC34262 Datasheet, PDF (5/16 Pages) ON Semiconductor – POWER FACTOR CONTROLLERS

MC34262 MC33262
Figure 9. Zero Current Detector Input
Threshold Voltage versus Temperature
1.7
Upper Threshold
VCC = 12 V
(Vin, Increasing)
1.6
1.5
1.4
1.3
– 55 – 25
Lower Threshold
(Vin, Decreasing)
0
25
50
75 100 125
TA, AMBIENT TEMPERATURE (°C)
0
– 2.0
– 4.0
– 6.0
4.0
2.0
0
0
Figure 10. Output Saturation Voltage
versus Load Current
VCC
Source Saturation
(Load to Ground)
VCC = 12 V
80 µs Pulsed Load
120 Hz Rate
Sink Saturation
(Load to VCC)
Gnd
80
160
240
320
IO, OUTPUT LOAD CURRENT (mA)
Figure 11. Drive Output Waveform
90%
VCC = 12 V
CL = 1.0 nF
TA = 25°C
Figure 12. Drive Output Cross Conduction
VCC = 12 V
CL = 15 pF
TA = 25°C
10%
100 ns/DIV
100 ns/DIV
Figure 13. Supply Current
versus Supply Voltage
16
12
8.0
VFB = 0 V
Current Sense = 0 V
4.0
Multiplier = 0 V
CL = 1.0 nF
f = 50 kHz
TA = 25°C
0
0
10
20
30
40
VCC, SUPPLY VOLTAGE (V)
Figure 14. Undervoltage Lockout Thresholds
versus Temperature
14
13
Startup Threshold
12
(VCC Increasing)
11
10
9.0
Minimum Operating Threshold
(VCC Decreasing)
8.0
7.–055 _{– 25}
0
25
50
75 100 125
TA, AMBIENT TEMPERATURE (°C)
MOTOROLA ANALOG IC DEVICE DATA
5